Originally Posted by
Junts
The problem with this feat, it seems to me, is that then there would be no character-side difference between being specced for fire/cold or acid/lightning, as all the spells would more or less be equally available and the enhancements are the same. Therefore, which ones were best would be governed purely by equipment availability, eg, improved/sup glaciation is available and magnetism/corrosion are not, so everyone would spec for fire/cold and use the feat to make spells into cold.
unless major tweaks were made to eq availability o r the affects of enhancement lines, the effect of that feat would be to make all sorcerors and wizards functionally identical.